Today is the day to beg forgiveness.

Reasons Why Female Astronauts Rarely Get to Participate in Space Walks

Gravity sends space boobs all over the place

Likely to get all the other space-women on the same 'cycle,' thus clogging up space-toilets

Might get makeup on the space station

Likely to fall in love with an alien and then get distracted

If the woman is doing the space walk, then who is back in the shuttle galley opening up packs of dehydrated food for the men?

Scent of menstrual blood in space attracts space sharks